If you and I had been living 100 years ago and someone had asked us this same question, I'm sure we would have missed the mark almost completely! The advances in technology and science during the last century have been staggering, and we can only speculate on what the next hundred years will bring. Only God knows the future.
But one thing will not be any different 100 years from now and that is human nature. Yes, the last century saw enormous progress but it also was the bloodiest century in the history of the human race. Even today, some of our greatest technological advances have been turned into our most dangerous threats.
What is the problem? The problem (although we don't like to admit it) is that our hearts are selfish and evil. Jesus put it this way: "Out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false testimony, slander" (Matthew 15:19). Our greatest need is to have our hearts changed from within and yet we are incapable of doing this on our own.
This is why we need Christ and we will still need Him 100 years from now. Only He can forgive our sins, and only He can change our hearts by the power of His Spirit. Why not open your heart and life to Him today? You will never be the same.